diff --git a/omar_qaterge.js b/omar_qaterge.js
new file mode 100644
index 000000000..206b5948f
--- /dev/null
+++ b/omar_qaterge.js
@@ -0,0 +1,202 @@
+//1
+console.log('Hello, World!');
+console.log('Ciao, mondo!');
+console.log('Salut, monde!');
+
+
+
+
+//2
+//problem:
+//console.log('I'm awesome');
+
+//Solution:
+console.log("I'm awesome");
+
+
+
+
+// 3
+let x;
+console.log("the value of my variable x will be: undefined");
+console.log(x);
+x = 69;
+console.log("the value of x will be: 69");
+console.log(x);
+
+
+
+
+//4
+let y = "JUST DO IT!";
+console.log("the value of my string will be: " + y);
+console.log(y);
+y = "maybe later...";
+console.log("the value of my string will be: " + y);
+console.log(y);
+
+
+
+
+//5
+//method 1
+let z = 7.25;
+console.log(z);
+const a = Math.round(z);
+console.log(a);
+const maxvalue = Math.max(a, z);
+console.log("the highest value of the two is: " + maxvalue);
+
+
+
+
+//method 2
+let z = 7.25;
+console.log(z);
+const a = Math.round(z);
+console.log(a);
+let highest_value;
+if (z > a) { 
+	highest_value = z
+    console.log("the highest value of the two is: " + highest_value);
+} else {
+    highest_value = a;
+    console.log("the highest value of the two is: " + highest_value);
+}
+
+
+
+
+
+//mothod 3
+let z = 7.25;
+console.log(z);
+const a = Math.round(z);
+console.log(a);
+const s = z - a;
+let highest_value;
+if (s > a - z) {
+	highest_value = a + s;
+    console.log("the highest value of the two is: " + highest_value);
+} else {
+	highest_value = z + -s;
+    console.log("the highest value of the two is: " + highest_value);
+}
+
+
+
+
+//method 4
+let z = 7.25;
+console.log(z);
+let a = z;
+if (a - Math.trunc(a) <= 0.4) {
+	a = Math.trunc(a);
+} else {
+	a = 1 - (a - Math.trunc(a)) + a;
+}
+console.log(a);
+let highest_value;
+if (z > a) { 
+	highest_value = z;
+    console.log("the highest value of the two is: " + highest_value);
+} else {
+    highest_value = a;
+    console.log("the highest value of the two is: " + highest_value);
+}
+
+
+
+
+//method 5
+let z = 7.25;
+console.log(z);
+let a = z;
+n = (a + "").split(".");
+i =(n.splice(-1, 1));
+let decimal = i[0];
+if (decimal.charAt(0) <= 4) {
+	a = Math.trunc(a);
+} else {
+	a = 1 - (a - Math.trunc(a)) + a;
+}
+console.log(a);
+let highest_value;
+if (z > a) { 
+	highest_value = z;
+    console.log("the highest value of the two is: " + highest_value);
+} else {
+    highest_value = a;
+    console.log("the highest value of the two is: " + highest_value);
+}
+
+
+
+
+//6
+const class_names = [];
+console.log("the value of the array is null which is nothing because it's empty");
+console.log(class_names);
+const domesticated_animals = ['dog', 'cat', 'horse', 'yak', 'alpaca'];
+console.log(domesticated_animals);
+domesticated_animals.push('baby pig');
+console.log(domesticated_animals);
+
+
+
+
+//7
+//more strings
+let myString = "this is a test";
+console.log(myString);
+console.log('the length of my string is: '+ myString.length);
+
+
+
+
+//8
+const string = 'hello, world!';
+const number = 5;
+const boolean = true;
+const object = {firstName:"Elon", lastName:"Musk"};
+console.log(string);
+console.log(number);
+console.log(boolean);
+console.log(object);
+console.log('the type of hello world is string');
+console.log(typeof string);
+console.log('the type of 5 is number');
+console.log(typeof number);
+console.log('the type of true is boolean');
+console.log(typeof boolean);
+console.log('the type of firstName:"Elon", lastName:"Musk" is object');
+console.log(typeof object);
+
+if (typeof boolean == typeof object) {
+    console.log('SAME TYPE');
+} else {
+	console.log('NOT THE SAME TYPE');
+}
+
+
+
+
+//9
+let x = 7;
+console.log("the value of x will be 1 because it's the remainder");
+console.log(x = x % 3);
+console.log('% is the modulus operator, it will let you have the remainder of the division');
+console.log('The % symbol is used in most programming languages, including JavaScript, as Modulu');
+console.log('modulo is the operation use to find the remainder after division of one number by another');
+
+
+
+
+//10
+console.log('Can you store multiple types in an array? Numbers and strings?');
+console.log('ANSWER: an array can store mutiple types of variables, Example:');
+console.log (array = ['Hello!!!!', 454, true]);
+console.log("Can you compare infinities? (Not in Eyad's world) - does 6/0 === 10/0? How can you test this?");
+console.log('ANSWER: 6/0 === 10/0 is true because both sides have the same value (both infinite) and type,');
+console.log('we can test it by running 6/0 === 10/0 straight in the console or like this:');
+console.log(6/0 === 10/0);
\ No newline at end of file
diff --git a/week3.js b/week3.js
new file mode 100644
index 000000000..810e47636
--- /dev/null
+++ b/week3.js
@@ -0,0 +1,223 @@
+// String and Array challenges
+
+// 1 strings:
+
+let myString = "hello,this,is,a,difficult,to,read,sentence";
+console.log(myString);
+console.log(myString.length);
+myString = myString.replace(/,/g, ' ');        // replace commas with spaces
+console.log(myString);
+
+
+
+// 2 Arrays:
+let favoriteAnimals = ["blowfish", "capricorn", "giraffe"];
+favoriteAnimals.push("turtle");  // adding Mauro's favorite animal at the end of the previous array
+console.log(favoriteAnimals);
+favoriteAnimals.splice(1, 0, "meerkat");
+console.log("using splice() a method that changes the contents of an array by removing or replacing existing elements and/or adding new elements)\n \
+in .splice(1, 0, 'meerkat') the 1 defines the index that i want to work with and 0 defines the number of elements that i want to replace.\n \
+so the value of the array will be:\n \
+[\"blowfish\", \"meerkat\", \"capricorn\", \"giraffe\", \"turtle\"]");
+console.log(favoriteAnimals);
+console.log("The array has a length of: " + favoriteAnimals.length);
+favoriteAnimals.splice(3,1);   // delete giraffe from the previous array
+console.log(favoriteAnimals);
+console.log("The item you are looking for is at index: " + favoriteAnimals.findIndex(animal => animal === "meerkat"));
+
+
+
+
+// More JavaScript
+
+//1
+function sum(x, y, z) {
+  const result = x + y + z;
+  return result;
+}
+
+
+
+//2
+function colorCar(color) {
+	const result = 'a ' + color + ' car';
+	return result;
+}
+
+
+
+//3
+function info(person = {firstName:"mark", lastName:"trump", age:50, eyeColor:"blue"}) {
+	return person;
+}
+
+
+
+//4
+function vehicleType(color, code){
+  if(code === 1){
+  return console.log("a " + color + " car")}
+  else if(code === 2){
+  	return console.log("a " + color + " motorbike")}
+}
+
+
+
+//5
+3 === 3 ? console.log("yes") : console.log("no");
+
+
+
+//6
+function vehicle(color, code, age){
+  if(code === 1){
+  	   if(age > 0){
+  	   	console.log("a " + color + " used car");
+  	   }
+  	   	else{console.log("a " + color + " car");}
+  	   }
+  else if(code === 2){
+  	   if(age > 0){
+  		console.log("a " + color + " used motorbike");
+  	   }
+  		else{
+  	   	console.log("a " + color + " motorbike");}
+  	   }
+}
+
+
+
+//7
+// method 1: using objects (adding another layer of objects for fun!)
+vehicle = {
+	"motor": {
+		id: "motorbike",
+    	id2: "bus",
+     	id3: "truck",
+     	id4: "car"
+     },
+     "railed": {
+     	id: "train",
+     	id2: "tram",
+     },
+     "aircraft": {
+     	id: "airplane",
+     	id2: "helicopter",
+     }
+}
+const firstKey = Object.keys(vehicle)[0];
+const secondKey = Object.keys(vehicle)[1];
+const thirdKey = Object.keys(vehicle)[2];
+//----------------------------------------------------
+console.log(vehicle["aircraft"]["id2"]);
+//logs helicopter
+console.log(vehicle[thirdKey]["id2"]);
+//logs helicopter
+//----------------------------------------------------
+
+//method 2: using arrays
+const vehicles = ["motorbike", "caravan", "bike", "bus"];
+
+
+
+
+//8
+console.log(vehicles[2]);
+
+
+
+
+//9
+const vehicles = ["motorbike", "caravan", "bike", "bus"];
+
+
+function vehicle(color,code,age){
+  let i;
+  if(code === 1){
+  	i = vehicles[0];
+  }
+  else if(code === 2){
+  	i = vehicles[1];
+  }
+  else if(code === 3){
+  	i = vehicles[2]
+  } 
+  else if(code === 4){
+  	i = vehicles[3]
+  } 
+
+  let x;
+  if(age <= 1){
+  x = "new";
+  }
+  else{
+	x = "used";
+  }
+   console.log("a",color,x,i);
+}
+vehicle("green", 3, 1)
+
+/////////////////////////////////////////////////////////
+//10
+const vehicles = ["car", "motorbike", "caravan", "bike"];
+
+let vehicleToService="";
+for(let counter = 0; counter < vehicles.length; counter ++){
+  if(counter === vehicles.length - 1){
+  	vehicleToService += vehicles[counter] + "s.";
+  } 
+  else {vehicleToService += vehicles[counter] + "s, ";}
+ }
+
+ console.log(" \"Amazing Joe's Garage, we service" , vehicleToService,"\"");
+
+
+
+//11
+const vehicles = ["car", "motorbike", "caravan", "bike"];
+vehicles.push("plane");
+console.log(vehicles);
+let vehicleToService="";
+for(let counter = 0; counter < vehicles.length; counter ++){
+  if(counter === vehicles.length - 1){
+  	vehicleToService += vehicles[counter] + "s.";
+  } 
+  else {vehicleToService += vehicles[counter] + "s, ";}
+ }
+
+console.log(" \"Amazing Joe's Garage, we service" , vehicleToService,"\"");
+
+
+
+//12
+const object = {};
+
+
+
+//13
+const person = {htmlCss:"Philipp Beau", cli:"Unmesh Joshi", JavaScript:"Yash Kapila"};
+
+
+
+//16
+let o1 = { foo: "bar" };
+let o2 = { foo: "bar" };
+let o3 = o2;
+
+console.log(o3);
+o2.foo = "something";
+console.log(o3);
+o1.foo = "and something else";
+console.log(o3);
+
+//Does the order that you assign (o3 = o2 or o2 = o3) matter?
+//yes, because the right side is being assigned to the left side, otherwise it will show that the variable is not defined.
+
+
+
+//What does the following code return? (And why?)
+let bar = 42;
+typeof typeof bar;
+
+//typeof bar; returns "number" because a number is assigned to bar as a value
+//typeof typeof bar; returns "string" because it is returning the type of "number" which is a string
\ No newline at end of file